From: Carl Weese (cweese@earthlink.net)
Date: 11/18/00-05:39:32 AM Z
Joe,
You use a color densitometer's blue channel to read silver *plus stain*
density--sort of. The numbers may not come out exactly kosher, but they
will help you determine exposure for various alt processes and help you
get more good first prints.
This is also true of the b&w Mantis densitometer which uses a deep blue
light source. Pyro negatives track quite well with it as long as you
work out your own matrix of readings. By which I mean it may not tell me
what the exact range of a particular negative is, but after establishing
some norms, it will tell me whether a first print from that neg is
likely to work at 6 minutes or 8 or 12. That's valuable.
---Carl
-- Website with online galleries and workshop information at: http://home.earthlink.net/~cweese/
This archive was generated by hypermail 2b30 : 12/01/00-11:46:57 AM Z CST